50

27 Soil Testing - Electronic Instrumentation

Submersible Load Transducers

u Eliminates effects of piston friction on readingsu Unaffected by cell confining pressures u Easily installed in triaxial cell u Supplied complete with calibration certificate and 5-pin DIN type connector for use with ADU

Submersible Load Transducers are used to measure accurately the axial loads applied to triaxial test specimens. Consisting of a load cell and piston assembly these units replace the standard triaxial cell loading piston. A major advantage is that these transducers measure loads directly on top of the specimen. All transducers are supplied complete with a 5-pin DIN type connector and calibration certificate.

Specification

Dimensions 75 x 50 mm (dia x h) excluding piston and adaptor

Overload capacity 150%

Output 26 mv full range

Excitation 10 V DC (15 V DC max)

Non-linearity 0.1% maximum

Hysteresis Deflection 0.1% maximum 0.05 mm at full load

Side force 50% full scale maximum without effect

Connector 5-pin DIN plug

Compensated temperature range

0 to 50C

Weight 850 g

Ordering InformationEL27-1573 5.0 kN capacity Submersible Load Transducer

EL27-1575 10 kN capacity Submersible Load Transducer

AccessoryEL27-1293 Distance Piece required when using submersible load cells.

Displacement Transducers

u Ideally suited for use with ADU for accurate displacement measurementsu Models available for use in consolidation, shear, CBR and triaxial test applications u Supplied complete with mounting hardware for specified products

Displacement Transducers are used in consolidation, shear, CBR and triaxial test applications for accurate displacement measurements. They are supplied complete with a 5-pin DIN type connector for direct connection to the ADU.

Specification

Construction Fully encapsulated electronics, sealed in a stainless steel case

Excitation 10 V DC

Connector 5-Pin DIN type

Mounting bracket Included as standard

Weight 0.45 kg

Ordering InformationEL27-1617 Axial Strain Transducer. 0 to 50 mm range. For use with Triaxial Cells.

EL27-1649 Consolidation Displacement Transducer. 0 to 10 mm range. For use on One-dimensional Consolidation Apparatus.

EL27-1689 Vertical Displacement Transducer. 0 to 10 mm range. For use with Direct/Residual Shear Machines.

EL27-1697 Horizontal Displacement Transducer. 0 to 10 mm range. For use on Direct/Residual Shear Machines.

EL27-1705 CBR Displacement Transducer. 0 to 50 mm range. For use on CBR Tritest and Multiplex Series Load Frames.

Tel: +44 (0) 1525 249 200 u Fax: +44 (0) 1525 249 249 u Email: ele@eleint.co.uk

Displacement Transducer

51

27 Soil Testing - Electronic Instrumentation

Volume Change Transducer

u Reversing valves to increase capacityu Steel case for wall mounting and access to piping u Supplied complete with calibration certificate

The Volume Change Transducer provides continuous measurements of volume change during the triaxial test. The assembly includes a valve to reverse the flow through the unit, providing increased capacity.

Specification

Overall dimensions (l x w x h)

178 x 229 x 368 mm

Maximum pressure 1700 kPa

Excitation 10 V DC

Output 1.25 full range

Capacity 80 ml

Connector 5-Pin DIN type

Weight 4.5 kg

Ordering InformationEL27-1641 Volume Change Transducer

Pressure Transducer

Pressure Transducers are used to measure the cell, pore and back pressures during triaxial testing. Assemblies are supplied complete with a de-airing block, valve, 5-pin DIN plug connector and calibration certificate.

Specifications

Construction Stainless steel

Excitation 10 V DC

Output 143 mV full range

Thread BSP

Ordering InformationEL27-1633 Pressure Transducer, 1700 kPa

Digital Pressure Gauge

The Digital Pressure Gauge offers highly accurate pressure measurement and digital readout for ELE triaxial cells.

Ordering InformationEL27-1620 Digital Pressure Gauge,1700 kPa, for ELE Triaxial Cells

For 24/7 online ordering, payment & order tracking go to www.ele.com

EL27-1641 Volume Change Transducer EL27-1620 Digital Pressure Gauge